Re: [osg-users] [osgOcean] Regulate the Ocean Reflection intensity.
Hi, Nice, I've seen now the mod, I'll try them as soon Thank you! Cheers, Dario -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=57512#57512 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgOcean] Regulate the Ocean Reflection intensity.
Hi, Looking the patch, I've seen that this is the same mod that I've tried but doesn't looks good to me...I'm using the trunk version, so the patch is different because some stuffs are moved in Technique file, but the mod is the same and I'm not really able to tone down (mean: add a lower reflection intensity) the reflection. Playing with fresnel mul and reflection mul don't move to me along a right final effect. Have you tried some other parameters combination? Have you a snapshot to see your result? Thank you! Cheers, Dario -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=57513#57513 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgOcean] Regulate the Ocean Reflection intensity.
Thanks I'll check out the effect and merge it. Kim. On 15 November 2013 00:33, Tisham Dhar tisham.d...@aerometrex.com.auwrote: Hi, I have successfully implemented a changing reflection intensity by adding 1) Multiplier to env_map 2) Creating a uniform corresponding to the multiplier in the shader 3) Setting this uniform via stateset and creating a corresponding variable in FFTOceanSurface. SVN diff to release tag attached. Cheers, whatnick. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=57225#57225 Attachments: http://forum.openscenegraph.org//files/refelection_var_diff_551.txt ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgOcean] Regulate the Ocean Reflection intensity.
Hi, I have successfully implemented a changing reflection intensity by adding 1) Multiplier to env_map 2) Creating a uniform corresponding to the multiplier in the shader 3) Setting this uniform via stateset and creating a corresponding variable in FFTOceanSurface. SVN diff to release tag attached. Cheers, whatnick. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=57225#57225 Attachments: http://forum.openscenegraph.org//files/refelection_var_diff_551.txt ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgOcean] Regulate the Ocean Reflection intensity.
Hi, In effect, I see the env_color computation in the fragment shader. I'm able to multiply this one by a tiny constant 1 (like 0.2) to obtain the result desired, but the problem is that the total final tone change drastically. I don't know if I've made right operation, but I'm trying to re-calibrate the total tone using wave and bottom top color and come another problem: changing those values at runtime I receive a double corruption from FFTOceanSurface like this: Code: *** glibc detected *** bin/Demo: double free or corruption (!prev): 0x06fab330 *** === Backtrace: = /lib/x86_64-linux-gnu/libc.so.6(+0x7eb96)[0x7f0ac5ab8b96] /usr/local/lib/libosgOcean.so(_ZNSt12_Destroy_auxILb0EE9__destroyIPSt6vectorIN8osgOcean9OceanTileESaIS4_vT_S8_+0x52)[0x7f0ac126d602] /usr/local/lib/libosgOcean.so(_ZN8osgOcean15FFTOceanSurface10computeSeaEj+0x142)[0x7f0ac126b782] /usr/local/lib/libosgOcean.so(_ZN8osgOcean15FFTOceanSurface5buildEv+0x40)[0x7f0ac126c970] /usr/local/lib/libosgOcean.so(_ZN8osgOcean15FFTOceanSurface18getSurfaceHeightAtEffPN3osg5Vec3fE+0x145)[0x7f0ac12676d5] Parameters for wave and top color are thought to runtime change? I need to perform some operation to achieve the runtime modification? Best Thank you! Cheers, Dario -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=56573#56573 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgOcean] Regulate the Ocean Reflection intensity.
Hi Dario, I would take a look inside the surface fragment shader and then tone down the mix function that blends the reflection texture with the surface. It should be pretty simple. Regards, Kim. On 27 September 2013 17:37, Dario Minieri para...@cheapnet.it wrote: Hi, I'm looking to modify the amount of reflections intensity inside ocean. I'm using last trunk rev 258. I'm stuck into this piece of code inside OceanScene: Code: _reflectionMatrix = osg::Matrixf( 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 0, 2 * _oceanScene-getOceanSurfaceHeight(), 1 ); osg::ref_ptrosg::Texture2D reflectionTexture = _oceanScene-createTexture2D( _oceanScene-_reflectionTexSize, GL_RGBA ); // clip everything below water line _reflectionCamera = _oceanScene-renderToTexturePass( reflectionTexture.get() ); _reflectionCamera-setClearColor( osg::Vec4( 0.0, 0.0, 0.0, 0.0 ) ); _reflectionCamera-setComputeNearFarMode( osg::Camera::DO_NOT_COMPUTE_NEAR_FAR ); _reflectionCamera-setCullMask( _oceanScene-_reflectionSceneMask ); _reflectionCamera-setCullCallback( new CameraCullCallback(_oceanScene.get()) ); _reflectionCamera-getOrCreateStateSet()-setMode( GL_CLIP_PLANE0+0, osg::StateAttribute::ON ); _reflectionCamera-getOrCreateStateSet()-setMode( GL_CULL_FACE, osg::StateAttribute::OFF | osg::StateAttribute::OVERRIDE ); _surfaceStateSet-setTextureAttributeAndModes( _oceanScene-_reflectionUnit, reflectionTexture.get(), osg::StateAttribute::ON ); I think that I should operate on texture properties, maybe the shader but right now I'm not able to see a significative change on intensity reflection effect...Someone can suggest to me a way? Thank you! Cheers, Dario[/code] -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=56514#56514 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
